Richmond Fire and Police crews are responding to a report of white powder at the John Marshall Courts Building.
A worker in the court clerk's office open up an envelop and encountered a small burst of white powder, according to the Richmond Sheriff's Department.
Crews are investigating to see if the powder poses any threat.
Copyright 2012 WWBT NBC12. All rights reserved.
WWBT-TV NBC 12
P.O. Box 12
On Your Side
Video and Pics